A Roll of Note / sticky note

Problem:The area of sticky notes often does not meet the size we need. Too large area cause wasting, and too small area is not enough to write.
Moreover, we use sticky note and paste it on the wall. Because its side always tilts, it is easily blown down from the wall and easily folded in the book.

Solution:Because roll form of sticky notes is covered with dotted lines which we can easily tear, the user can freely use the required size.
The sticky areas are on both sides, so the sticky note can be completely smooth on the wall and in the book.